CocoaPods trunk is moving to be read-only. Read more on the blog, there are 18 months to go.
To use the templates please drag and drop the files "KahunaInAppMessageView.h" & "KahunaInAppMessageView.m" into your main app.
Uncheck the "Copy items if needed" option to just create a reference to the templates.
If you are developing in SWIFT, please import the "KahunaInAppMessageView.h" in your bridging header file. https://developer.apple.com/library/ios/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html